/* * TP-Link TL-WR942N(RU) v1 board support * * Copyright (C) 2017 Sergey Studzinski <serguzhg@gmail.com> * Thanks to Henryk Heisig <hyniu@o2.pl> * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 as published * by the Free Software Foundation. */ #include <linux/platform_device.h> #include <linux/ath9k_platform.h> #include <asm/mach-ath79/ar71xx_regs.h> #include <linux/gpio.h> #include <linux/init.h> #include <linux/spi/spi_gpio.h> #include <linux/spi/74x164.h> #include "common.h" #include "dev-m25p80.h" #include "machtypes.h" #include "dev-eth.h" #include "dev-gpio-buttons.h" #include "dev-leds-gpio.h" #include "dev-spi.h" #include "dev-usb.h" #include "dev-wmac.h" #include "nvram.h" #define TL_WR942N_V1_KEYS_POLL_INTERVAL 20 #define TL_WR942N_V1_KEYS_DEBOUNCE_INTERVAL \ (3 * TL_WR942N_V1_KEYS_POLL_INTERVAL) #define TL_WR942N_V1_GPIO_BTN_RESET 1 #define TL_WR942N_V1_GPIO_BTN_RFKILL 2 #define TL_WR942N_V1_GPIO_UART_TX 4 #define TL_WR942N_V1_GPIO_UART_RX 5 #define TL_WR942N_V1_GPIO_LED_USB2 14 #define TL_WR942N_V1_GPIO_LED_USB1 15 #define TL_WR942N_V1_GPIO_SHIFT_OE 16 #define TL_WR942N_V1_GPIO_SHIFT_SER 17 #define TL_WR942N_V1_GPIO_SHIFT_SRCLK 18 #define TL_WR942N_V1_GPIO_SHIFT_SRCLR 19 #define TL_WR942N_V1_GPIO_SHIFT_RCLK 20 #define TL_WR942N_V1_GPIO_LED_WPS 21 #define TL_WR942N_V1_GPIO_LED_STATUS 22 #define TL_WR942N_V1_74HC_GPIO_BASE 32 #define TL_WR942N_V1_74HC_GPIO_LED_LAN4 (TL_WR942N_V1_74HC_GPIO_BASE + 0) #define TL_WR942N_V1_74HC_GPIO_LED_LAN3 (TL_WR942N_V1_74HC_GPIO_BASE + 1) #define TL_WR942N_V1_74HC_GPIO_LED_LAN2 (TL_WR942N_V1_74HC_GPIO_BASE + 2) #define TL_WR942N_V1_74HC_GPIO_LED_LAN1 (TL_WR942N_V1_74HC_GPIO_BASE + 3) #define TL_WR942N_V1_74HC_GPIO_LED_WAN_GREEN (TL_WR942N_V1_74HC_GPIO_BASE + 4) #define TL_WR942N_V1_74HC_GPIO_LED_WAN_AMBER (TL_WR942N_V1_74HC_GPIO_BASE + 5) #define TL_WR942N_V1_74HC_GPIO_LED_WLAN (TL_WR942N_V1_74HC_GPIO_BASE + 6) #define TL_WR942N_V1_74HC_GPIO_HUB_RESET (TL_WR942N_V1_74HC_GPIO_BASE + 7) /* from u-boot sources */ #define TL_WR942N_V1_SSR_BIT_0 0 #define TL_WR942N_V1_SSR_BIT_1 1 #define TL_WR942N_V1_SSR_BIT_2 2 #define TL_WR942N_V1_SSR_BIT_3 3 #define TL_WR942N_V1_SSR_BIT_4 4 #define TL_WR942N_V1_SSR_BIT_5 5 #define TL_WR942N_V1_SSR_BIT_6 6 #define TL_WR942N_V1_SSR_BIT_7 7 #define TL_WR942N_V1_WMAC_CALDATA_OFFSET 0x1000 #define TL_WR942N_V1_DEFAULT_MAC_ADDR 0x1fe40008 #define TL_WR942N_V1_DEFAULT_MAC_SIZE 0x200 #define GPIO_IN_ENABLE0_UART_SIN_LSB 8 #define GPIO_IN_ENABLE0_UART_SIN_MASK 0x0000ff00 static struct gpio_led tl_wr942n_v1_leds_gpio[] __initdata = { { .name = "tl-wr942n-v1:green:status", .gpio = TL_WR942N_V1_GPIO_LED_STATUS, .active_low = 1, }, { .name = "tl-wr942n-v1:green:wlan", .gpio = TL_WR942N_V1_74HC_GPIO_LED_WLAN, .active_low = 1, }, { .name = "tl-wr942n-v1:green:lan1", .gpio = TL_WR942N_V1_74HC_GPIO_LED_LAN1, .active_low = 1, }, { .name = "tl-wr942n-v1:green:lan2", .gpio = TL_WR942N_V1_74HC_GPIO_LED_LAN2, .active_low = 1, }, { .name = "tl-wr942n-v1:green:lan3", .gpio = TL_WR942N_V1_74HC_GPIO_LED_LAN3, .active_low = 1, }, { .name = "tl-wr942n-v1:green:lan4", .gpio = TL_WR942N_V1_74HC_GPIO_LED_LAN4, .active_low = 1, }, { .name = "tl-wr942n-v1:green:wan", .gpio = TL_WR942N_V1_74HC_GPIO_LED_WAN_GREEN, .active_low = 1, }, { .name = "tl-wr942n-v1:amber:wan", .gpio = TL_WR942N_V1_74HC_GPIO_LED_WAN_AMBER, .active_low = 1, }, { .name = "tl-wr942n-v1:green:wps", .gpio = TL_WR942N_V1_GPIO_LED_WPS, .active_low = 1, }, { .name = "tl-wr942n-v1:green:usb1", .gpio = TL_WR942N_V1_GPIO_LED_USB1, .active_low = 1, }, { .name = "tl-wr942n-v1:green:usb2", .gpio = TL_WR942N_V1_GPIO_LED_USB2, .active_low = 1, }, }; static struct gpio_keys_button tl_wr942n_v1_gpio_keys[] __initdata = { { .desc = "Reset button", .type = EV_KEY, .code = KEY_RESTART, .debounce_interval = TL_WR942N_V1_KEYS_DEBOUNCE_INTERVAL, .gpio = TL_WR942N_V1_GPIO_BTN_RESET, .active_low = 1, }, { .desc = "RFKILL button", .type = EV_KEY, .code = KEY_RFKILL, .debounce_interval = TL_WR942N_V1_KEYS_DEBOUNCE_INTERVAL, .gpio = TL_WR942N_V1_GPIO_BTN_RFKILL, .active_low = 1, }, }; static struct spi_gpio_platform_data tl_wr942n_v1_spi_data = { .sck = TL_WR942N_V1_GPIO_SHIFT_SRCLK, .miso = SPI_GPIO_NO_MISO, .mosi = TL_WR942N_V1_GPIO_SHIFT_SER, .num_chipselect = 1, }; static u8 tl_wr942n_v1_ssr_initdata[] = { BIT(TL_WR942N_V1_SSR_BIT_7) | BIT(TL_WR942N_V1_SSR_BIT_6) | BIT(TL_WR942N_V1_SSR_BIT_5) | BIT(TL_WR942N_V1_SSR_BIT_4) | BIT(TL_WR942N_V1_SSR_BIT_3) | BIT(TL_WR942N_V1_SSR_BIT_2) | BIT(TL_WR942N_V1_SSR_BIT_1) | BIT(TL_WR942N_V1_SSR_BIT_0) }; static struct gen_74x164_chip_platform_data tl_wr942n_v1_ssr_data = { .base = TL_WR942N_V1_74HC_GPIO_BASE, .num_registers = ARRAY_SIZE(tl_wr942n_v1_ssr_initdata), .init_data = tl_wr942n_v1_ssr_initdata, }; static struct platform_device tl_wr942n_v1_spi_device = { .name = "spi_gpio", .id = 1, .dev = { .platform_data = &tl_wr942n_v1_spi_data, }, }; static struct spi_board_info tl_wr942n_v1_spi_info[] = { { .bus_num = 1, .chip_select = 0, .max_speed_hz = 10000000, .modalias = "74x164", .platform_data = &tl_wr942n_v1_ssr_data, .controller_data = (void *) TL_WR942N_V1_GPIO_SHIFT_RCLK, }, }; static void tl_wr942n_v1_get_mac(const char *name, char *mac) { u8 *nvram = (u8 *) KSEG1ADDR(TL_WR942N_V1_DEFAULT_MAC_ADDR); int err; err = ath79_nvram_parse_mac_addr(nvram, TL_WR942N_V1_DEFAULT_MAC_SIZE, name, mac); if (err) pr_err("no MAC address found for %s\n", name); } static void __init tl_wr942n_v1_setup(void) { u8 *art = (u8 *) KSEG1ADDR(0x1fff0000); u8 tmpmac[ETH_ALEN]; void __iomem *base; u32 t; ath79_register_m25p80(NULL); spi_register_board_info(tl_wr942n_v1_spi_info, ARRAY_SIZE(tl_wr942n_v1_spi_info)); platform_device_register(&tl_wr942n_v1_spi_device); /* Check inherited UART RX GPIO definition */ base = ioremap(AR71XX_GPIO_BASE, AR71XX_GPIO_SIZE); t = __raw_readl(base + QCA956X_GPIO_REG_IN_ENABLE0); if (((t & GPIO_IN_ENABLE0_UART_SIN_MASK) >> GPIO_IN_ENABLE0_UART_SIN_LSB) == TL_WR942N_V1_GPIO_LED_USB1) { pr_warn("Active UART detected on USBLED's GPIOs!\n"); tl_wr942n_v1_leds_gpio[9].gpio = TL_WR942N_V1_GPIO_UART_TX; tl_wr942n_v1_leds_gpio[10].gpio = TL_WR942N_V1_GPIO_UART_RX; } ath79_register_leds_gpio(-1, ARRAY_SIZE(tl_wr942n_v1_leds_gpio), tl_wr942n_v1_leds_gpio); ath79_register_gpio_keys_polled(-1, TL_WR942N_V1_KEYS_POLL_INTERVAL, ARRAY_SIZE(tl_wr942n_v1_gpio_keys), tl_wr942n_v1_gpio_keys); tl_wr942n_v1_get_mac("MAC:", tmpmac); /* swap PHYs */ ath79_setup_qca956x_eth_cfg(QCA956X_ETH_CFG_SW_PHY_SWAP | QCA956X_ETH_CFG_SW_PHY_ADDR_SWAP); ath79_register_mdio(0, 0x0); ath79_register_mdio(1, 0x0); /* WAN port */ ath79_init_mac(ath79_eth0_data.mac_addr, tmpmac, 1); ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_MII; ath79_eth0_data.speed = SPEED_100; ath79_eth0_data.duplex = DUPLEX_FULL; /* swaped PHYs */ ath79_eth0_data.phy_mask = BIT(0); ath79_register_eth(0); /* LAN ports */ ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_GMII; ath79_init_mac(ath79_eth1_data.mac_addr, tmpmac, 0); ath79_eth1_data.speed = SPEED_1000; ath79_eth1_data.duplex = DUPLEX_FULL; /* swaped PHYs */ ath79_switch_data.phy_poll_mask |= BIT(0); ath79_switch_data.phy4_mii_en = 1; ath79_register_eth(1); ath79_register_wmac(art + TL_WR942N_V1_WMAC_CALDATA_OFFSET, tmpmac); ath79_register_usb(); gpio_request_one(TL_WR942N_V1_74HC_GPIO_HUB_RESET, GPIOF_OUT_INIT_HIGH | GPIOF_EXPORT_DIR_FIXED, "USB power"); gpio_request_one(TL_WR942N_V1_GPIO_SHIFT_OE, GPIOF_OUT_INIT_LOW | GPIOF_EXPORT_DIR_FIXED, "LED control"); gpio_request_one(TL_WR942N_V1_GPIO_SHIFT_SRCLR, GPIOF_OUT_INIT_HIGH | GPIOF_EXPORT_DIR_FIXED, "LED reset"); } MIPS_MACHINE(ATH79_MACH_TL_WR942N_V1, "TL-WR942N-V1", "TP-LINK TL-WR942N v1", tl_wr942n_v1_setup);